Or it could be a video driver problem. Re-install your video driver to make sure there isn't anything wrong.
And no, there isn't a Fn key combo to unfreeze your screen.
This is my first computer,so I dont know how to install a video driver. Who would I go to , to have this done. Or can I google this and find a web site that will show me how to do this myself? ( I hope this isnt very hard)
Thanks for your help